Ink cartridge



FIG. 1 is a perspective view of an ink cartridge, as viewed from the top, front and right side, embodying our new design;

FIG. 2 is a perspective view thereof, as viewed from the bottom, rear and left side;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed invention. 

CLAIM The ornamental design for an ink cartridge, as shown and described. 